





def 	lowerCAmelCase_					(			__a						)	->						bool:







  """simple docstring"""





  lowerCamelCase__: Tuple         =[int(__a						) for i in ip_va_address.split("."						) if i.isdigit()]
  return len(__a						) == 4 and all(0 <= int(__a						) <= 254 for octet in octets						)


if __name__ == "__main__":
     __A							   =							input().strip()
     __A							   =							"valid" if is_ip_va_address_valid(ip) else "invalid"
     print(f'{ip} is a {valid_or_invalid} IP v4 address.')









"""simple docstring"""
def 							A						(				__snake_case: int  )    ->		int:

       """simple docstring"""





       if divisor % 5 == 0 or divisor % 2 == 0:
              return 0
       __magic_name__      				=    1
       __magic_name__      				=    1
       while repunit:
              __magic_name__      				=    (1_0 * repunit + 1) % divisor
              repunit_index += 1
       return repunit_index


def 							A						(				__snake_case: int = 1_0_0_0_0_0_0  )    ->		int:

       """simple docstring"""





       __magic_name__      				=    limit - 1
       if divisor % 2 == 0:
              divisor += 1
       while least_divisible_repunit(__snake_case  ) <= limit:
              divisor += 2
       return divisor


if __name__ == "__main__":
 print(f"""{solution() = }""")